Another so-called cannabis "grow house" is discovered by police as part of the ongoing Operation Armscote in Canberra, with a further 71 cannabis plants and more than $20,000 worth of hydroponic equipment seized.

The company behind a guided tour of the forest where Ivan Milat buried the people he murdered warns customers they "may never come out", but a victims of crime group is slamming the idea and the NSW Premier warns the operators could be breaking the law.